1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * x86 instruction attribute tables 4 * 5 * Written by Masami Hiramatsu <mhiramat@redhat.com> 6 */ 7 #include "../include/asm/insn.h" /* __ignore_sync_check__ */ 8 9 /* Attribute tables are generated from opcode map */ 10 #include "inat-tables.c" 11 12 /* Attribute search APIs */ inat_get_opcode_attribute(insn_byte_t opcode)13 insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode) 14 { 15 return inat_primary_table[opcode]; 16 } 17 inat_get_last_prefix_id(insn_byte_t last_pfx)18 int inat_get_last_prefix_id(insn_byte_t last_pfx) 19 { 20 insn_attr_t lpfx_attr; 21 22 lpfx_attr = inat_get_opcode_attribute(last_pfx); 23 return inat_last_prefix_id(lpfx_attr); 24 } 25 inat_get_escape_attribute(insn_byte_t opcode,int lpfx_id,insn_attr_t esc_attr)26 insn_attr_t inat_get_escape_attribute(insn_byte_t opcode, int lpfx_id, 27 insn_attr_t esc_attr) 28 { 29 const insn_attr_t *table; 30 int n; 31 32 n = inat_escape_id(esc_attr); 33 34 table = inat_escape_tables[n][0]; 35 if (!table) 36 return 0; 37 if (inat_has_variant(table[opcode]) && lpfx_id) { 38 table = inat_escape_tables[n][lpfx_id]; 39 if (!table) 40 return 0; 41 } 42 return table[opcode]; 43 } 44 inat_get_group_attribute(insn_byte_t modrm,int lpfx_id,insn_attr_t grp_attr)45 insn_attr_t inat_get_group_attribute(insn_byte_t modrm, int lpfx_id, 46 insn_attr_t grp_attr) 47 { 48 const insn_attr_t *table; 49 int n; 50 51 n = inat_group_id(grp_attr); 52 53 table = inat_group_tables[n][0]; 54 if (!table) 55 return inat_group_common_attribute(grp_attr); 56 if (inat_has_variant(table[X86_MODRM_REG(modrm)]) && lpfx_id) { 57 table = inat_group_tables[n][lpfx_id]; 58 if (!table) 59 return inat_group_common_attribute(grp_attr); 60 } 61 return table[X86_MODRM_REG(modrm)] | 62 inat_group_common_attribute(grp_attr); 63 } 64 inat_get_avx_attribute(insn_byte_t opcode,insn_byte_t vex_m,insn_byte_t vex_p)65 insn_attr_t inat_get_avx_attribute(insn_byte_t opcode, insn_byte_t vex_m, 66 insn_byte_t vex_p) 67 { 68 const insn_attr_t *table; 69 if (vex_m > X86_VEX_M_MAX || vex_p > INAT_LSTPFX_MAX) 70 return 0; 71 /* At first, this checks the master table */ 72 table = inat_avx_tables[vex_m][0]; 73 if (!table) 74 return 0; 75 if (!inat_is_group(table[opcode]) && vex_p) { 76 /* If this is not a group, get attribute directly */ 77 table = inat_avx_tables[vex_m][vex_p]; 78 if (!table) 79 return 0; 80 } 81 return table[opcode]; 82 } 83 84